Package org.apache.hadoop.util.functional

Interface CallableRaisingIOE<R>

Type Parameters:

R - return type

All Known Implementing Classes:

LazyAtomicReference, LazyAutoCloseableReference

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface CallableRaisingIOE<R>

This is a callable which only raises an IOException. Its method unchecked() invokes the apply() method and wraps all IOEs in UncheckedIOException; call this if you need to pass this through java streaming APIs

Method Summary

Modifier and Type	Method	Description
R	apply()	Apply the operation.
default R	unchecked()	Apply unchecked.

Method Detail

apply

R apply()
 throws java.io.IOException

Apply the operation.

Returns:

result

Throws:

java.io.IOException - Any IO failure

unchecked

default R unchecked()

Apply unchecked.

Returns:

the evaluated call

Throws:

java.io.UncheckedIOException - IOE raised.